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Resorufin beta-D-galactopyranoside *CAS 95079-19-9*

Resorufin beta-D-galactopyranoside is a fluorogenic galactosidase substrate that generates a red fluorescent product upon interaction with the enzyme. This enzyme substrate is widely used in high throughput screening of galactosidase inhibitors.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Resorufin beta-D-galactopyranoside *CAS 95079-19-9* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM266.432 µL1.332 mL2.664 mL13.322 mL26.643 mL
5 mM53.286 µL266.432 µL532.864 µL2.664 mL5.329 mL
10 mM26.643 µL133.216 µL266.432 µL1.332 mL2.664 mL

Molarity calculator

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Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yield
Resorufin alpha-D-galactopyranoside5715846500010.751

References

View all 8 references: Citation Explorer
Ever-fluctuating single enzyme molecules: Michaelis-Menten equation revisited
Authors: English BP, Min W, van Oijen AM, Lee KT, Luo G, Sun H, Cherayil BJ, Kou SC, Xie XS.
Journal: Nat Chem Biol (2006): 87
Crystallization of beta-galactosidase does not reduce the range of activity of individual molecules
Authors: Shoemaker GK, Juers DH, Coombs JM, Matthews BW, Craig DB.
Journal: Biochemistry (2003): 1707
Measurement of enzyme kinetics using a continuous-flow microfluidic system
Authors: Seong GH, Heo J, Crooks RM.
Journal: Anal Chem (2003): 3161
beta-galactosidase assay using capillary electrophoresis laser-induced fluorescence detection and resorufin-beta-D-galactopyranoside as substrate
Authors: Eggertson MJ, Craig DB.
Journal: Biomed Chromatogr (1999): 516
Microchip device for performing enzyme assays
Authors: Hadd AG, Raymond DE, Halliwell JW, Jacobson SC, Ramsey JM.
Journal: Anal Chem (1997): 3407
Page updated on November 21, 2024

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Physical properties

Molecular weight

375.33

Solvent

DMSO

Spectral properties

Absorbance (nm)

570

Extinction coefficient (cm -1 M -1)

650001

Excitation (nm)

571

Emission (nm)

584

Quantum yield

0.751

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12352200

CAS

95079-19-9
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